Lead-wire leading device in electric motor

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EP 0 855 783 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	13.10.1999 Bulletin 1999/41

(43)	Date of publication A2:
	29.07.1998 Bulletin 1998/31

(21)	Application number: 97111541.5

(22)	Date of filing: 08.07.1997

(51)	International Patent Classification (IPC)⁶: H02K 5/22

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

28.01.1997 JP 14331/97

(71)	Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
	Tokyo 100 (JP)

(72)	Inventors:
	Shiroyama, Shigeru Chiyoda-ku, Tokyo 100 (JP) Morishita, Akira Chiyoda-ku, Tokyo 100 (JP)

(74)	Representative: Ritter und Edler von Fischern, Bernhard, Dipl.-Ing. et al
	Hoffmann Eitle, Patent- und Rechtsanwälte, Arabellastrasse 4 81925 München 81925 München (DE)

(54)	Lead-wire leading device in electric motor

(57) A lead-wire leading device in an electric motor which comprises: lead wires 10a and 10b having first ends which are connected to a terminal, and second ends, namely, the remaining ends which are connected to brushes; and a grommet 7 adapted to secure the lead wires to a motor frame, namely, a rear bracket 12, the grommet 7 being fitted on the lead wires 10a and 10b, so that the leakage current circuit which is formed by the lead wires 10a and 10b, the grommet 7, and the rear bracket 17 when the motor operates abnormally is cut off with an insulating member, namely, a silicone glass tube 14 which is higher in heat resistance than the grommet 7.

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